Means for laying dust and the like on and making roads.



T06. COMPOSlTlONS,

COATING on PLAsnc bl "UIUI \JllaJv PA ENT QFFIQE,

ROBERT HACKINGQoFW EsE aniDdroaD, NOTTINGHAM, mm? 01 onLE ii'i'oN, AND HENRY WALKER HILL, or NOTTINGHAM, ENGLAND.

uEaNs rdii LAYING DUST 980,513. Io Drawing. 7 i

To all whom it may concern:

Be it known that we, ROBERT HACKING,

HARRY HILL, and HENRY WALKER HILL, subjects of the King of Great Britain and Ireland, residing, respectively, at No. 23 Chestnut Grove, West Bridgford, Nottingham, Thoresb Y Park, Ollerton, and No. 37 Lent-on road, Nottingham, all in the county of Nottingham and Kingdom of En land, have invented certain new and usef Improvements in the Means of Laying Dust and the Like On and Making Roads, of which the following is a specification;

Our invention has for its objects improvements in the means of laying dustand the like on roads, also in binding the materials of 'WhlCh such roads are made. For this purpose we use aflux composed of silicate of soda preferably in a 1i uid form-and commonly known as water'g assor we may use the silicate in the form of'crystals, either orboth mixed with a suitable quantity 01 water. This mixture is heated nearly to boiling point so as to more readily combine the two ingredients together,. and is then allowed to get vcold; when .cold'we add thereto a solvent preferably spirits of turpentine so as to act as a preliminary, solvent r the oil and other by-product flcontained in the tar -to which the flux is afterward added. The-spirits of; turpentine so added enables the oil and other by-products in the tar to be more readily taken up bfy and mixed with the silicate gt soda-iIThm flux is combined of the'above named ingredients inthe following approximate proportions,

Water 30 gallons.

. Silicate of soda 120 pounds. Spirits of turpentine; gallon. I

AND THE LIKE oN AND MAKIN noaDs.

water-all cold in the following approximate proportions, viz:

, Flux as specified above 30 gallons. 'Crude tar 70 gallons. Water 100 gallons.

-If rectified tar be used instead of crude tar, the proportion will be about gallons. The whole is then placed in the tank of a distributing cart-where it is thoroughly mixed together by suitable means-and is Exam v p ifi n f Letters Patent. Patented Jan. 3, 1911 I Application m Rovember a, Serial .110. 526,837.

be distributed on the road quite coldiwithout heating the mixture in any way.

The action of this mixture on the roads is such that as the silicate of soda has a greater aifinity for the earth than tar, the silicate enetrates into the road and mixes withthe ime, magnesian or muriatiferous substances and thus forms silicate oflime, which is a rfectly tenacious, insoluble and indestructible substance. This renders the surface .of the road'impermeable and non-absorbent.

We may use one or more suitable solvents other than spirits of turpentine, but we prefer touse'spirits of turpentine on account ofv its rapid evaporation and great penetrative powers and comparativecheapness.

Having now particularly described and 1"- ascertained the nature of our said invention, and inwhat manner the same is to be performed, we declare that what we claim is:

'1. A. composition for surfacin roads,

comprising a flux composed of s' mate of soda andspirits of turpentine mixed with tar and water in the proportions specified, as set forth.

2. A composition for surfacing roads, comprising a flux composed of silicate of soda and spirits of turpentine mixed with tar and water in the proportions of thirty gallons of water, one hundred and twenty pounds of silicate of soda and one-half gallon of spirits of turpentine, to which is added from sixty to seventy'gallons'of tar and one hundred gallons of water, the whole being mixed and intimately combined with the recitedingredients, as set forth.

3. In a composition for surfacing roads, v

a mixture of tar and water, and a flux for liquefying the same, the said flux consisting of water, silicate of soda and spirits of turvset our hands in pentine, in substantially the proportions specified, for the purpose set forth;

In testimony whereof we have hereunto 15 presence of two subscribing witnesses.

ROBERT HACKING. HARRY HILL.

Witnesses:

FRANK A. DADY, JOHN R. Psnooox, 

